How do you use "Addzer0"?
 

I'm using a guide and it says to put Addzer0 in the folder with the iso. I did that. Then it tells me to type "Addzer0 Input.iso output.iso 12210” so my command line looks like this:

C:\Documents and Setting\Adren>Addzer0 Input.iso output.iso 12210

(Though the number is different, mines upwards of 600k)

And I get some annoying error I get whenever I type something in command... blah blah not a command...

How do I use this?

Image Made with Alcohol 120% (ISO/MDS) (MDS is suppost to like mount better or something)
Game: Shinobi (NSTC)

What exactly are you trying to do?

Make a Swap Magic Playable backup.

Are you trying to make a backup of the Swap Magic boot disc?? If so you will need a original or a modchip for it to load so why bother.

No. Trying to make a Backup of Shinobi, playable through Swap Magic.

Just make a direct backup. Addzero is not needed, At least according to the swap magic web site it isnt.